Finding the Fourth Proportional to 319,555.88, 440,987.04 and 176,316.20
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Solution
The fourth proportional to 319,555.88, 440,987.04 and 176,316.20 is: 243,316.31
Step by Step Solution
- Step 1: Write the proportion equation
319,555.88 : 440,987.04 = 176,316.20 : x - Step 2: Convert to fraction form
319,555.88/440,987.04 = 176,316.20/x - Step 3: Cross multiply
319,555.88x = 440,987.04 × 176,316.20 - Step 4: Simplify right side
319,555.88x = 77,753,159,142.05 - Step 5: Solve for x
x = 77,753,159,142.05/319,555.88 - Step 6: Final answer
x = 243,316.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.